Defences of honeybees Flashcards

1
Q

3 main responses of the immune system

A

phagocytosis

protein cascades

antimicrobial peptides

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2
Q

2 main components of protection in insects

A

cuticule

haemolymph

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3
Q

proteins in the haemolymph aid in

A

coagulation and wound healing

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4
Q

what can you find in the haemolymph

A

proteins

phagocytic cells

antimicrobial proteins

enzymes

complement protein like peptides

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5
Q

6 antimicrobial peptides

A

2 proline rich antimicrobial peptides

2 conventional defensins

apisimin

humenoptaecin

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6
Q

2 proline rich antimicrobial proteins

A

abaecin

apidaecin

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7
Q

what is pentraxin

A

conservative inflammation protein - part of innate humoral response and functions as an antibody

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8
Q

cells that bees do not have in the immune system

A

no Ig, lymphocytes and no lymphoid organs

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9
Q

what are the immune cells that bees mainly have

A

mainly free leucocytes

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10
Q

5 main cell categories in the immune system

A

progenitor cell

phagocyte

hemocyte

nutritive cell

pigment cell

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11
Q

what is a cytokine like cell that bees have

A

IL1 - aids in phagocytosis

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12
Q

melanisation

A

melanin toxic products destroy the pathogen, meanwhile granular hematocytes also release agglutinins and opsonins

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13
Q

4 PRR families - pattern recognition

A

2 for infections and other proteins

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14
Q

2 ways to activate the defense in pattern recognition

A

signaling and phagocytosis

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15
Q

what is a toll signaling pathway

A

most common pathway with 5 toll related genes

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16
Q

what does the saliva of bee contain

A

antimicrobial secretions in the saliva

17
Q

microbiome of bees

A

crop - v few bacteria
ileum
rectum - 10^9 bacterial cells
midgut - few bacteria, no stable lining

18
Q

speciality’s of bees immunity

A

fewer immune genes
sacrifice themselves
colony organisation
hygiene behaviour
antimicrobial secretions in the saliva